#include<stdio.h>
#include<sys/types.h>
#include<unistd.h>

int main()
{
    pid_t id = fork();  //创建一个子进程
    if(id == 0)
    {
        //child
        int count = 5;
        while(count)
        {
            printf("我是子进程，我正在运行：%d\n",count);
            sleep(1);
            count--;
        }
    }
    else
    {
        //father
        while(1)
        {
            printf("我是父进程，我正在运行...\n");
            sleep(1);
        }
    }


    //printf("我是一个进程，pid:%d\n",getpid());
    ////int x;
    ////scanf("%d",&x);
    //while(1)
    //{
    //    printf("hello bit\n");
    //}
    return 0;
}
